2002022121204 has 120 divisors (see below), whose sum is σ = 5981824069760. Its totient is φ = 571960989504.

The previous prime is 2002022121199. The next prime is 2002022121247. The reversal of 2002022121204 is 4021212202002.

2002022121204 is a `hidden beast` number, since 200 + 20 + 221 + 21 + 204 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37438374 + ... + 37491810.

Almost surely, 2^{2002022121204} is an apocalyptic number.

It is an amenable number.

2002022121204 is an abundant number, since it is smaller than the sum of its proper divisors (3979801948556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2002022121204 is a wasteful number, since it uses less digits than its factorization.

2002022121204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69979 (or 69968 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2002022121204 its reverse (4021212202002), we get a palindrome (6023234323206).

The spelling of 2002022121204 in words is "two trillion, two billion, twenty-two million, one hundred twenty-one thousand, two hundred four".